There's a National Guard station about five miles from my house. They have a tank out front. I'd swing by there to see if the place is manned yet/still, and if the tank is present and gassed up, hopefully they're not too hard to figure out how to drive if you're not that concerned about running stuff over.
However I get there, my destination is Walgreens. It's got high windows, just the one door to worry about, internal roof access, and enough food, medicine, and diversions to get me through the initial chaos, at least. The longer-term plan would be to find an abandoned ranch out in Texas hill country with good visibility, sturdy fences, and good soil.